Double ferris wheel



FIG. 1 is a perspective view of the double Ferris wheel showing my new design;

FIG. 2 is a right side view thereof; the left side being a mirror image thereof;

FIG. 3 is a front view thereof;

FIG. 4 is a rear view thereof;

FIG. 5 is a bottom view thereof; and,

FIG. 6 is a top view thereof.

The broken lines shown in the drawings illustrate portions of the double Ferris wheel that form no part of the claimed design. 

CLAIM The ornamental design for a double Ferris wheel, as shown and described. 